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add documentation for housenumber analyzer

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Sarah Hoffmann
2022-02-18 15:55:10 +01:00
parent 13ed184efd
commit b694a97edf
1 changed files with 13 additions and 4 deletions
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docs/customize/Tokenizers.md
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@@ -206,15 +206,16 @@ by a sanitizer (see for example the
The token-analysis section contains the list of configured analyzers. Each The token-analysis section contains the list of configured analyzers. Each
analyzer must have an `id` parameter that uniquely identifies the analyzer. analyzer must have an `id` parameter that uniquely identifies the analyzer.
The only exception is the default analyzer that is used when no special The only exception is the default analyzer that is used when no special
analyzer was selected. analyzer was selected. There is one special id '@housenumber'. If an analyzer
with that name is present, it is used for normalization of house numbers.
Different analyzer implementations may exist. To select the implementation, Different analyzer implementations may exist. To select the implementation,
the `analyzer` parameter must be set. Currently there is only one implementation the `analyzer` parameter must be set. The different implementations are
`generic` which is described in the following. described in the following.
##### Generic token analyzer ##### Generic token analyzer
The generic analyzer is able to create variants from a list of given The generic analyzer `generic` is able to create variants from a list of given
abbreviation and decomposition replacements and introduce spelling variations. abbreviation and decomposition replacements and introduce spelling variations.
###### Variants ###### Variants
@@ -331,6 +332,14 @@ the mode by adding:
to the analyser configuration. to the analyser configuration.
##### Housenumber token analyzer
The analyzer `housenumbers` is purpose-made to analyze house numbers. It
creates variants with optional spaces between numbers and letters. Thus,
house numbers of the form '3 a', '3A', '3-A' etc. are all considered equivalent.
The analyzer cannot be customized.
### Reconfiguration ### Reconfiguration
Changing the configuration after the import is currently not possible, although Changing the configuration after the import is currently not possible, although